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Finding the Fourth Proportional to 180,211.12, 248,669.64 and 99,627.76

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Solution

The fourth proportional to 180,211.12, 248,669.64 and 99,627.76 is: 137,474.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,211.12 : 248,669.64 = 99,627.76 : x
  2. Step 2: Convert to fraction form
    180,211.12/248,669.64 = 99,627.76/x
  3. Step 3: Cross multiply
    180,211.12x = 248,669.64 × 99,627.76
  4. Step 4: Simplify right side
    180,211.12x = 24,774,399,213.21
  5. Step 5: Solve for x
    x = 24,774,399,213.21/180,211.12
  6. Step 6: Final answer
    x = 137,474.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.